What Are Cushions Called? A Guide to Pillow Terminology and Types

Walk into any furniture store or browse an online home decor site, and you will likely feel a moment of confusion. You see soft squares on sofas, long rolls at the end of beds, and fluffy rectangles under your head. Some labels say "pillow," others say "cushion," and some use words like "bolster" or "lumbar." It is easy to wonder if these are just marketing tricks or if there is actual logic behind the naming.

The short answer is that terminology depends heavily on geography and function. In the United States, almost everything soft you lean on or sleep with is called a pillow. In the UK, Australia, and New Zealand, the word cushion usually refers to items used for seating or decoration, while pillow is reserved strictly for bedding. Understanding these distinctions helps you communicate exactly what you need, whether you are buying a new sofa accessory or trying to get better sleep.

Geographic Differences: Pillow vs. Cushion

The biggest source of confusion comes from regional language habits. If you are reading American interior design blogs, you will see "throw pillows" everywhere. These are the decorative squares placed on couches and chairs. An American shopper would rarely ask for a "sofa cushion" unless they meant the removable fabric cover (the slipcover) rather than the foam insert itself.

In contrast, someone in London, Sydney, or Auckland uses the word cushion for those same decorative items. Here, a "seat cushion" is the pad you sit on, and a "back cushion" supports your spine against the sofa frame. The word pillow is almost exclusively used for sleeping aids. This distinction matters when searching for products online. If you search for "bedroom pillows" in a global store, you might get decorative cushions instead of sleeping aids. Knowing your local vocabulary ensures you find the right product without sifting through irrelevant results.

Decorative Cushions: Throw Pillows and Lumbar Supports

When it comes to styling a room, the terms change based on shape and purpose. The most common decorative item is the square or rectangular pad used to add color and texture to a seating area.

• Throw Pillows (US) / Cushions (UK/NZ): These are typically 16x16 inches or 40x40 cm. They are not meant for structural support but for visual interest. You place them on sofas, armchairs, or even beds to break up large blocks of fabric.
• Lumbar Pillows: These are smaller, often rectangular or kidney-shaped cushions designed to support the lower back. They are frequently found in office chairs or tucked behind the back of a dining chair. The name comes from the lumbar region of the spine.
• Bolsters: A bolster is a long, cylindrical cushion. Originally used in traditional Asian bedding for arm support, modern bolsters are often used as decorative accents at the foot of a bed or on a sofa. They provide a distinct visual line compared to square cushions.

Choosing the right type depends on your goal. If you want to fix a slouchy posture in a deep sofa, a lumbar pillow is the functional choice. If you want to make a neutral beige couch pop with color, standard throw cushions are the way to go. Mixing shapes, such as pairing a square cushion with a round bolster, creates a more curated, high-end look.

Bedding Terminology: Sleep Support Names

Once you move to the bedroom, the terminology becomes more specific regarding fill material and loft (height). While "pillow" is the umbrella term, subcategories help identify the sleep experience.

You might also encounter the term "Euro sham." This is not a pillow itself but a large, square decorative pillowcase, usually 26x26 inches or larger. Euro shams are propped against the headboard to create a layered, hotel-style look. They often contain a thin insert called a "form" or "body," which keeps the sham from looking deflated.

Specialized Cushions: Function Over Form

Beyond decoration and sleep, certain cushions have specific medical or ergonomic names. These are defined by their problem-solving capabilities.

A Tailbone Cushion is a seat pad with a cutout at the rear to relieve pressure on the coccyx. People with tailbone injuries or chronic pain often use these during long periods of sitting. Similarly, a gel seat cushion uses phase-change materials to draw heat away from the body, making it popular for car seats or office chairs in warm climates like Auckland summers.

Another specialized type is the wedge cushion. These are triangular pads used for elevation. You might use a wedge cushion to prop up your legs after surgery, or to incline your torso while eating to reduce acid reflux. The geometry defines the name here, distinguishing it from flat pads.

Materials That Define Names

Sometimes the name of the cushion comes from its outer fabric or filling. A floor cushion is simply a large, thick pad designed for sitting on the ground, often associated with meditation or casual living rooms. A bean bag is technically a type of cushion, filled with expanded polystyrene beads rather than foam or fiber. It conforms entirely to the body's shape.

Outdoor cushions have their own category too. These are often labeled as all-weather cushions or sunbrella cushions, referring to the brand of acrylic fabric known for resisting UV fading and mold. Using indoor cotton cushions outside will lead to mildew within weeks, so recognizing the material label is crucial for durability.

How to Choose the Right Name for Your Needs

When shopping, start with the function. Are you sleeping, sitting, or decorating?

1. For Sleep: Use terms like "memory foam pillow" or "down alternative pillow." Specify your sleeping position (side, back, stomach) to narrow down the loft height.
2. For Seating Comfort: Look for "lumbar support" or "ergonomic seat cushion." If you have a hard wooden chair, a "padded seat cushion" with high-density foam is best.
3. For Decor: Search for "throw pillows" or "decorative cushions." Focus on fabric textures like velvet, linen, or bouclé. Remember that in NZ and UK stores, these are just called cushions.

Knowing the exact name helps you avoid buyer's remorse. Buying a "soft pillow" for back support will likely fail because it lacks the density needed for spinal alignment. Conversely, buying a firm memory foam pillow for your sofa might look bulky and uncomfortable for lounging. Match the name to the job.